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LAMP.

No. 334,698. Patented Jan. 19, 1886.

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(No Model.) 2 Sheets- Sheet 2. M. B. 810. G. DYOTT.

' I LAMP. "No. 334,698. Patented Jeni. 19, 1886.

UNTTED STATES PATENT FFIcE.

MICHAEL B. DYOTT AND CHARLES Gr. DYOTT, OF PHILADELPHIA, PA.

LAMP.

SPECIFICATION forming part of Letters Patent No. 334,698, dated January 19, 1886.

Application filed August 14, 1884. Serial No. 140,541.

To all whom it may concern:

Be it known that we, MICHAEL B. DYOTT and CHARLES G. DYOTT, citizens of the United States, residing-in Philadelphia, Pennsylva uia, have invented certain Improvements in Lamps, of which the following is a specification.

Our improvements consist of certain devices for operating the wick raiser and spreaderbutton of the lamp, the character of said devices being too fully set forth hereinafter to need preliminary explanation.

In the accompanying drawings, Figure l is a sectional view of a lamp with our improvements; Fig. 2, a side view of the device for raising and lowering the wick holder and spreader-button, and Fig. 3 a sectional plan on the line 1 2, Fig. 1.

A is the reservoir of the lamp, and B the burner-tube, isolated from the reservoir by the intervening annular chamber a, but communicating with said reservoir near the lower end through the short supply-tubes a.

F is the Wl()k-C3.I'IlGI, having arod, b, which is contained in a chamber, 0, Fig. 3, formed on the outside of the burner-tube, th upper end of the rod being bent for adaptation to a canr slot, 1/, in a cylinder, G, guided on a tubular projection, d, of the reservoir, and secured to or forming part of the perforated lower portion, f, of the chimneyholder H, which is free to turn on said tubular projection of the reservoir, and has a dome or deflector, g, and re taining -fingers h. The cylinder G has another cam slot, m, to which is adapted the upper end of a rod, m, said rod passing down through the space a, and being bent at the lower end for attachment to the lower end of the tubular-stem l of the spreader button J,

vwhich occupies a posit-ion above the top of the burner-tube, the stem Z being guided in bearings within the burner-tube. One of the cams occupies a circumferential position farther from the rod engaging it than the other from its rod, whereby during the lowering of the wick-carrier the spreader-button will occupy (No model.)

a fixed position above the burner tube; but after the wick has been lowered to the full extent the said button will also be lowered so as to close the upper end of the burner-tube, and thus insure the extinguishing of any gas generated after the lowering of the wick, the button being first raised to its proper position before the wick is raised in order to again light the lamp. Surrounding the outer wall of the burnertube at the upper end of the same'is an annular cxsing, K, which serves to collect and return to the tube through openings 3 any oil which may drip over the top of said tube on the outside of the same.

We claim as our invention 1. The combination of the burner-tube, the wick-raiser, the spreader-button, and a camcylinder and operating -rods, whereby said wick-raiser and spreader-button are actuated, all substantially as specified.

2. The combination of the burner-tube, the wick raiser, the spreader button, operatingrods for said wickraiser and spreader-button, and a cam-cylinder having two cams, one of which occupies a circumferential position farther from the rod engaging it than the other from its rod, all substantially as specified.

3. The combination of the burner-tube, the chimney-holder, a camcylinder forming part thereof, and a wick-raiser and spreader-button having projecting rods acted upon by the cam-cylinder, all substantially as specified.

4. The combination of the lampreservoir, the burner-tube, the annular space a between the two, the cam-cylinder, thewick-raiser, the spreader-button, and an operating-rod for the latter, passing through the space a, as set forth.

In testimony whereof we have signed our names to this specification in the presence of two subscribing witnesses.

MICHAEL B. DYOTT. CHARLES G. DYOTT.

\Vitnesses:

JOHN M. CLAYTON, HARRY SMITH. 

